1) The ONLY safety is to keep your finger OFF the trigger
Come on TomĀ

. Dont make such a loaded statement to a Newb who might not know any better. Glocks are as safe as
ANY revolver, but I
KNOW you would not make that same statement if he was asking about a wheel gun.
Here is the run down on Glock.....
Glock is a striker fired pistol with a long DAO style trigger pull - which like on a revolver, is a great safety feature in and of itself.
DAO style guns are incredibly safe, andĀ have probably saved more Cops and/or people who use them as CCWs then there have ever been injuries due to accidental discharges. When your life is on the line, draw and shoot is faster and far more effective then draw, disengage, and shoot will ever be.
Glocks, in fact, have 3 safeties which are deactivated when the trigger is pulled - and automatically activated when it is released:
1. TRIGGER SAFETY
* prevents inadvertent firing by lateral forces on the trigger. Releasing the trigger will automatically reactivate the safety.
2. FIRING PIN SAFETY
* blocks the firing pin channel, rendering the igniting of a chambered cartridge by the firing pin impossible. The firing pin safety is only pushed upward to release the firing pin for firing when the trigger is pulled and the safety is pushed up through the backward movement of the trigger bar. Releasing the trigger will automatically reactivate the firing pin safety.
3. DROP SAFETY
* prevents unintentional firing of a shot through hard impact such as accidentally dropping it out of a helicopter (Search uTube).
For my recomendation:
Go Glock! You won't be disappointed. They are uber reliable and will go bang each and every time you need them to.
I have been shooting Glocks for almost a Decade now and I have never had a failure.They are also priced right. They are around $500 and you might be able to find a nice used one for under $400 if you look hard enough.
Like maybe here------------>
http://www.budsgunshop.com/catalog/product_info.php?products_id=411536067 For a subcompact concealed carry gun, I carry daily and would highly recommend the Glock 26 9mm (
Bane will too once he gets some trigger time 
). Perfect size, lightweight, easy to conceal and they bring plenty of firepower to the fight (10+1). Above all, they are reliable as all get out.
http://www.downrange.tv/reviews/showproduct.php/product/6/cat/6For home defense, I would say that you could definitely go with a full size Glock in .45 or get the Glock 17 in 9mm (17+1) to compliment the 26. Then they both would be able to run the same ammo and the 26 can also use any mag that fits the 17. Besides, 9mm is much cheaper to shoot then .45 so you would save money at every practice session..... and with the 9mm you also have the option of 33rd mags, which makes for a formidable home defense pistol (17 or 26).
http://www.lonewolfdist.com/Detail.aspx?PROD=629